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The role of reaction to the gravitational force on a body

  1. Jul 12, 2016 #1
    What happens to the normal reaction of the force of gravity on a body orbiting around the Earth? The force of gravity provides the centripetal force, but does all of it get converted to centripetal force? Is there any kind of resultant force towards the centre of the Earth (due to the normal reaction)? If so, how it is obtained and what is its role ? If not, what exactly happens to it?
  2. jcsd
  3. Jul 12, 2016 #2

    Doc Al

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    Staff: Mentor

    The so-called "normal force" is usually a force exerted by a surface that is supporting an object. For a body in orbit there is no support surface or normal force.

    Is that what you meant by "normal reaction force"?
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